Here's what rhymes with surpassin.
                        
                        
                    
                                Words that almost rhyme with surpassin
passing  surpassing  dashing  amassing  massing  bashing  gassing  chaffing  dazing  having  laughing  staffing  harassing  lashing  caching  calving  cashing  classing  gnashing  halving  hashing  mashing  draughting  lathing  plashing  trashing  gashing  stashing  gaffing  glassing  grassing  flashing  crashing  clashing  smashing  splashing  thrashing  slashing  graphing  quaffing  rehashing  depraving  photographing  autographing  paragraphing  telegraphing  tannin  batsmen  lapin  backspin  napkin  calcine  hangmen  lambskin  catkin  hatpin  examine  sanguine  draughtsmen  bandsmen  calfskin  landsmen